A DNA vaccine induces SARS coronavirus neutralization and protective immunity in mice.

A DNA vaccine induces SARS coronavirus neutralization and protective immunity in mice.
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DNA疫苗可诱导小鼠中和冠状病毒中和和保护性免疫。

DOI:
10.1038/nature02463
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发表时间:
2004-04-01
期刊:
影响因子:
64.8
通讯作者:
Nabel GJ
Nabel GJ
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Yang ZY;Kong WP;Huang Y;Roberts A;Murphy BR;Subbarao K;Nabel GJ

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公共卫生措施已经成功地发现和控制了严重急性呼吸系统综合征(SARS)冠状病毒(SARS-CoV)的爆发,但人们仍然担心未来复发的可能性。因此,寻找这种病毒的疫苗仍然是一个高度优先事项。在这里,我们表明,编码刺突(S)糖蛋白的SARS冠状病毒的DNA疫苗诱导T细胞和中和抗体反应,以及保护性免疫,在小鼠模型。通过DNA免疫分析S的替代形式。这些表达载体诱导了由CD 4和CD 8细胞介导的稳健的免疫应答,以及通过酶联免疫吸附测定测量的显著的抗体滴度。此外,用编码包括其跨膜结构域的S形式的表达载体接种的小鼠中的抗体应答引发中和抗体。在接种这些S质粒DNA表达载体的小鼠的肺中,病毒复制减少了六个数量级以上,并且保护是由体液而不是T细胞依赖性免疫机制介导的。基于基因的SARS-CoV疫苗接种可激发有效的免疫应答,在动物模型中产生保护性免疫。本文的在线版本(doi:10.1038/nature 02463)包含补充材料,可供授权用户使用。
Public health measures have successfully identified and contained outbreaks of the severe acute respiratory syndrome (SARS) coronavirus (SARS-CoV), but concerns remain over the possibility of future recurrences. Finding a vaccine for this virus therefore remains a high priority. Here, we show that a DNA vaccine encoding the spike (S) glycoprotein of the SARS-CoV induces T cell and neutralizing antibody responses, as well as protective immunity, in a mouse model. Alternative forms of S were analysed by DNA immunization. These expression vectors induced robust immune responses mediated by CD4 and CD8 cells, as well as significant antibody titres, measured by enzyme-linked immunosorbent assay. Moreover, antibody responses in mice vaccinated with an expression vector encoding a form of S that includes its transmembrane domain elicited neutralizing antibodies. Viral replication was reduced by more than six orders of magnitude in the lungs of mice vaccinated with these S plasmid DNA expression vectors, and protection was mediated by a humoral but not a T-cell-dependent immune mechanism. Gene-based vaccination for the SARS-CoV elicits effective immune responses that generate protective immunity in an animal model. The online version of this article (doi:10.1038/nature02463) contains supplementary material, which is available to authorized users.
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影响因子: 1.8
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发表时间: 2003-10-30
期刊: Nature
影响因子: 64.8
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